The numbers on the right and bottom- for example 5 and 5 in the first one, you multiply them, and then you add the number on the left. So it's 5 * 5 + 5 which is 30.
The 2nd one, you multiply 9 * 8 and you get 72. Then you add 7 and get 79.
For the third one, you multiply 24 * 3 and get 72. Then you have to find the ?. So i did 100- 72 and you get 28.
Step-by-step explanation: because the way the other problems are solved is the right side of the triangle times the bottom and then adding the left side of the triangle, ( 9x8+7=79 ) ( 5x5+5=30) so to get the answer you’d just multiply 24x3= 72 , then subtract 100-72= 28
